.topPanelSticker {
    position: fixed;
    top: 0;
    left: 45%;
    background-color: #fff;
    border-left: 1px solid #ccc;
    border-right: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
    border-bottom-left-radius: 2px;
    border-bottom-right-radius: 2px;
    font-size: 0.9em;
    font-weight: 600;
    padding: 4px 8px;
    cursor: pointer;
    z-index: 11;
}

.topPanel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: #fff;
    height: 0;
    z-index: 11;
    border-bottom: 1px solid #ccc;
    overflow: auto;
}